Sound-reproducing machine



Nov. 27', 1923 'I 1,475,541

' F. CIRELLI SVOUND REPODUCING MACHINE Filed May 24. 1921 {Sheets-Sheet l lll/111111,. v

Nov. 27

Filed May 24, 1921 2 Sheets-Sheet 2 Patented Nov. 27, 1923.

UNITED STATES- FRANCESCO CIRELLI, OF PHILADELPHIA, PENNSYLVANIA'.

soUNn-nEPRoDUoiNG MACHINE.

Appiicauon mee May 24, 192i. Serial No. 472,206.

To @ZZ 'whom t may concern Be it known that I, FRANoEsoo CIRELLI, a subject of the King of Italy, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Sound-Rep'roducing Machines, of which the following' is a specication.

One object of my invention is to provide in a sound reproducingmachine animproved' structure which will modulate the character of sounds reproduced from records in such manner as to improve and cause them to have a morernatural quality;

Another object is' to provide improved means whichis readily adjustable for varying the modulating Veffect so that the soundcan be modulated in a manner best suitable to the natural-quality of a voice which is being reproduced'or to the natural quality of instruments which are being reproduced.

A further object is'l to provide an improved structure in which the soundconducting means includes sections pivoted together so as to be folded one upon the other and locked in their folded positions so that they will be held` against accidental movement; said sections when thus folded being readily removable a's-'a unit andbeing` adapted so as to be stored in the case or cabinet of the machine.

A further object is to arrange the parts ofv my invention so that they can be readily manufactured. y

These objects, and` other advantageous ends which will be described hereinafter, I

VVattain in the following manner, reference being had to the accompanying drawings in whichu Itfigure 1 is a top plan view showing a Y.machine mad-ein accordance with my inven! vtion and illustrating the parts in their'playincr'positi'ons, l v

Figure 2 is' a side elevation of' Figure 1, Figuref isa fragmentary elevation look- .ing in" the" direction of the arrowv .r in Figure land illustrating t'hesound'boX-carrycharacter as' Figur-elf 3 showing the. sound conducting4 sections foldedy and locked in' their" folded positions,

Figure 6V is an enlarged section taken on the line 6 6 of lFigure 1.

Referring tothe drawings, 7 represents a boxvv or cabinet which includes a hollow base 8 preferably made of a single piece'ofl metal, such for example as aluminum. A hollow lid 9 is secured to the base 8 by' a ymetallic hinge 10. The lid 9 is preferably made of a singlepiece of metal and of such shape that when closed it will cover the top of the base 8; said basefand lid having rounded corners as shown atl 11a.

I have illustrated the base 8` provided with two compartments 12 and 13 which are produced by an uprighttransverse partition la` and atop board 15. 1This top board be wound by ak crank 19 which is inserted through a collar 20,which is secured tothe front of the base. The motor serves to ro# tate a center post 21v to which is connected a turntable 22;` said turntable including" a hinged section 23 which may be swung upwardly to permit access to the compartment 13 so that said compartment 13'can beuse'd for storing the sound; conducting and transmitting means hereinafter described.

The enlarged surface of the flange 24 of` the'lid 9fhas a pivotpost 25`securedthereto' so that when the lid 'is swung intoan open position as shown in Figures'l to t inclusive,- the post 25V will be'upright.

placed' over the post 25so that the horn will freely swing: in a Ahorizontal plane. on the post 25 as a pivot. From' the 'end-j 27. the

horn tapers forwardly andr terminatesin av transversehead' 29; said head having a transverse cylindrical boreBO which is openL at its opposite ends asl shown'in Figure 6; A sound conducting section' 31 hasa' cylindrical sleeve portion 32 whichis adapted to' pivotally fit within theboi'e4 30 as sliowninv Figurev 6; saidf sleeve portionY havingV a flange 33S adapted to ,abuty onev end of the:` headl29. Thesleeve'lpor'tion 32 has al' hole'' 34 adapted to registerv with' the interior? of thehorn andthe free end 35 oflsaidfsleeve' portion 32 is internally screw threaded' to receive the externally screw threaded stemofiacap 37;, Thezoapf? issofafdfiartiet'elfI,v`

A horn 26 at' itswide' open end' 27 hasV a socket 285 depending therefrom and adapted toi be greater than that of the bore 30 so thatthe 32 as shown in Figure 6. rIhis flange 40 is `'internally screw threaded and an external screw threaded plug 41 is adapted to be screwed into the flange. The ange has holes or perforations 42 extending entirely therethrough and lspaced apart ,anmila-rly; the arrangement being such that the plug 41 can be screwed into the flange 40 so as to either partially or entirely close the perforations 42. The portion 38 has a tubular extension 43 which is arranged preferably at right angles to the axis of the sleeve portion 32. The forward end of the tubular portion 43 terminates preferably in an enlarged hollow knuckle 44 which provides an enlarged chamber 45 as shown in Figure 5. A transverse tubular portion 46 of the section 31 projects from the knuckle 44 parallel with and substantially in the same direction as that in which the sleeve portion 32 extends from the hollow portion 38. rIhe outer end of the tubular portion 46 has a i sound box 47 detachably secured thereto,

which sound box may be of any suitable construction providing means for engagement with the record mounted on the turntable 22, as shown in Figure 2. The tubular portion 46 is preferably provided with a knob or handle 48 to facilitate the swinging of the sound conducting section 31 in the head 29 so that if desired to change a needle or to play another record the section 31 can be swung as shown in Figure 3 into a position such as shown in Figure 4 with the tubular portion 46 resting above the top of the horn 26.

I secure a small receptacle 49 on the top of the horn 46 in a position such as shown in Figures 1 and 2 and this receptacle can be used for holding reproducing needles. A cover 50 is adapted to be detachably secured to the receptacle 49 as shown in Figure 4 after the section 31 has been swung upwardly and when it is desired to discontinue playing the machine, this cover has a part 50a, as shown in Figures 4 and 5, that when secured to the receptacle it will serve asa stop for engagement with the tubular portion 46 so that the section 31 cannot swing when the cover 50 is on thereceptacle 49. When the cover 50 is removed from the receptacle however, the section 31 is free to Swing and when resting on the horn 46 the needlefchuck of the sound box 47 will be in an upright position to permit the changthe perforations and .the plug 41 that by turning the plug to vary the amount of opening of saidA perforations that the quality of the sound producedis improved and furthermore that the sound can be modulated with the results'above set forth in the objects of the invention. This improvement is particularly noticeable when the perforations are made adjacent the chamber 39.

When the parts are moved into the position as shown in Figure 4 and locked by the application of the cover' 50 to the receptacle, the horn 26 can be lifted off the post 45 and readily stored in the compartment 13 merely'by swinging the section` 23 of the turntable and opening the hinged section 16 of the top board l5.

I have also found that by making the box or cabinet- 7 with the base 8 and lid 9 of metal and connecting` said lid and base with a metallic hinge that the sound waves emanating from the end 27 of the horn, when they engage the inner surface of the lid 9, will be amplified in a manner not previously accomplished and that the resulting sound is o*reatly improved.

When not desired for use, thecrank 19 as well as the sound conducting means can be stored in the compartment 13 and the lid can be closed and secured *by any suitable latch or locking means and I have provided a handle 51 on the cabinet so that it can be readily carried.

While I have described my invention as taking a particular form, it will be understood that the various parts of my `invent-ion may be changed without departing from the spirit thereof, and hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to make such. changes and alterations as fairly come within the scope of the appended claims.

Having thus described my invention, what I` claim as new and desire to secure by Letters Patent is f 1. In a sound reproducing machine, a sound conducting section, a second sound conducting section pivotally carriedv by said first named section,'sound producing means carried by said last named' section, and a receptacle provided with a cover having a portion for abutment with the last named Section adapted to lock said section'against izo pivotal movement with the sound reproduc ing means raised out of operative position.

2. In a sound reproducing machine, sound conducting means including two sections pivotally connected together; means formino a support for one of said sections; a neede receptacle on said latter section; sound reproducing means on the other section, said latter section when raised being Y capable of moving over said needle receptacle; and a cover adapted to be secured to said needle receptacle, said cover having a lportion for abutment with said swung` section to lock the sections against pivotal movement with respect to each other; sub- 15 FRANCESCO CIRELLI. Witnesses:

' ELIZABETH GORLIE,

CHAs. E. Pofrrs. 

